Charging device for concrete-mixers.



P. A. KOEHRINGL G DEVICE FOR CONCRETE MIXERS.

' GHARGIN APPLICATION FILED SEPT. 9, 1913.

Patented Aug. 11, 1914.

2 SHEETS-SHEET l.

Witwqzmzo P. A. KOEHRING. CHARGING DEVICE FOR CONCRETE MIXERS.

APPLICATION FILED SEPT. 9, 1913.

Patented Aug. 11, 1914.

" BEETS-SHEET 2.

. machine, looking rials received by the bucket adapted to be supported on the truck, or

i type, being illustrated as rd i. it liltin IMAUHINE COMPANY, OFIEILVIAUIEIEE, WISCONSIN.

lonesome .nnvion res. concu sion-lunches.

To all whom it may concern i Be it known that l, PHILIP 1L lhOElllflNG c tizen of the UnitedStates, residing at 'lwaukee, in the county of ltflil'waukee and State of disconsin, have invented certain new and useful ll'nprovements in Charging Devices for Concreteliiixers, of which the follmving is a. specification.

This invention relates to the type of corn cretc inixing machines wherein a. suitable llilXlllgodl'UHl is mounted upon a truck" or equivalent support anddisposed within a' framework erected.adjacent thereto on said sup iort, and which framework carries certain hoisting mechanism operable by a motor and connected with a charging device for the mixing drum n'eiterably in the form of a movablymounted bucket. A

Clllie object of the invention has been to devise a special form ofcharging device, the same comi'irising a bucket pivotally mountl ed upon the fraineworl'c above mentionedin a peculiar manner so as to )ermit-of using much lower framework than has hereto fore been required in similar machines, as

well. as ailordin a 'reater levera e for the hoistino' means in. liftmp' the load oi mateto be subseoucntlv dischar 'ed therefrom mtothe mixing drum.

The invcntimi comprises certain other dctail features of construction that will be more fully set forth hereinafter and'fully understood on reference to the accompany ins; drawings in which,

Figure 1 isa side elevation of a mixing machine, showing the present invention applied thereto. Fig. 2' is an end view of the toward the inlet of the mixing drum, certain parts of the hoisting mechanism, and the charging bucket being omitted. r

In the drawings-A denote atruck which comprises suitable ground wheels B and is moved over the ground by power transmitted from a suitable motor by draft means, if desired. The truck A carries the mixing drum which may be of any conventional gear driven, and having at suitable inlet 1 and outlet 2.. The drum C is located within a framework erected on the truck A and comprising end uprights 3'and 4, intermediate u fights 5, the upper longitudinal bars 6, and the cross Specification of Letters Patent.

the machine be 'open for a with enter Fig, l for Patented An. 11, 1914.

Application filed September 9, 1913. Serial No. 788,918.

barsj, which connect the members 6 together at points adjacent to the uprights 3 'v and 5, tlie uprights 4 not beingconnected by any such cross bars 7 since it is desired that the framework at the charging cnd of purpose hereinafter. .described. Mounted. in suitable brackets carried by the intermediate up} rights is a winding shaft 8 on which are mounted. the drums 9 of like form, and the drum. 10 of considerably larger diame ter than the drums-.1). A main operating cable ll is mnnectwl with the drum 10, and 7 an actuating drum '12 supported by a drive shaft 13 seen in. Fig. 1 as 70 directly supported by the truck A, and adapted to bev operated from the motor a supported by said truck. Cables 1 L connect the drums 9 with the opposite sides of the charging device or I bucket 15 which islocated at the front end of the machine and is of angular form, as illustrated injl ig. 1. Intermediate the ends of the upper portion of the bucket 15, said bucket has secured thereto pivot arms 16, the free innermost ends of which have as an axis a shaft L7 which is supported by in clined bars 18 which connect and brace the uprights e'land 5. The point of connection of the arms 16 with the bucket 3.5 being oliset from the delivery end of the bucket adjacent thereto, permits this end to partially a trough 19 when the bucket is up ra sed in the dotted line position shown in discharging its contents into the mixing drum C. The trough 19 will be fixedly mounted upon the framework in any suitable n anner with its lower end. partially introduced into the inlet end of the drum C, and its upper end partly supportedby a cross piece 20 on the bars 18. l-laving in view the fact that the uprights t are spaced apart so as to permit the bucket 15 to operate therebetween, and the further fact that the upper ends of said uprights are not directly connected together, it will be apparent that in the operation of l aising the bucket 15, by means of cables 11 and 14 and the driving means therefor, said bucket of said sheaves and the point of pivotal support of the bucket 15 permits of elevation of the bucket 15, to its discharging position by the exercise of a minimum amount of power. The raising and lowering of the bucket 15' is, of course, accomplished by reverse movement of the drum l0 and the operation of certain controlling mechanism that does not form any part of the present invention Having thus described my I claim as new is:

1. In means of the class described, the combination of a support, a framework erected thereon and comprising a plurality of spaced uprights,'bars connecting said uprights at their upper ends, inclined connecting and brace bars intermediate certain of said uprights of the framework, a charging bucket comprising an outer receiving portion and an inner delivery portion, pivot arms secured to the bucket at the delivery portion thereof and supported by said inclined brace bars, hoisting means including cables connected with the receiving portion of the bucket and movable to raise saidreceiving portion into a discharging position in which it enters the space between the upper horizontal bars of the framework, and sheaves on the framework over which said cables pass. p

2. In means of the class described, the

invention, what combination of a supporting truck, a framework thereon consisting of spaced sides; each side composed of a plurality of uprights, upper horizontal bars connecting the upper ends of the uprights of each side of the-framework, cross bars connecting said horizontal bars at one end and intermediate the ends of the framework, the other end of the framework being open at its upper end, inclined brace bars connecting certain uprights of each side of the framework, a pivot shaft supported by said inclined brace bars, charging means including a bucket con'iprising a receiving portion and a discharging portion,- pivot arms projecting from the discharging portion of said bucket intermediate its ends and connected with the pivot shaft aforesaid, sheaves on the upper portion of the framework at one end of the same, .and hoisting means including cables passing over said sheaves and connected with the receiving portion ofsaid bucket to raise the latter into a position in which said receiving portion enters the space between the sides of the framework at the open end of the latter.

In testimony whereof I aflix my signature in presence of two witnesses.

PHILIP A. KOEHRING. Witnesses G. H. Minnnn, E. F. Holman s'rnmnn. 

